材料科学
纳米结构
铁电性
纳米颗粒
极化(电化学)
纳米技术
压电
等离子体子
电场
光电子学
表面等离子共振
极化
化学工程
电介质
复合材料
化学
物理化学
物理
量子力学
工程类
作者
Jun Hu,Ru-Fang Zhao,Jingren Ni,Wei Luo,Hongjian Yu,Hongwei Huang,Boyuan Wu,Yang Wang,Jie Han,Rong Guo
标识
DOI:10.1002/advs.202410357
摘要
Abstract Developing efficient photo‐piezocatalytic systems to achieve the conversion of renewable energy to chemical energy emerges enormous potential. However, poor catalytic efficiency remains a significant obstacle to future practical applications. Herein, a series of unique Au@BaTiO 3 (Au@BT) yolk‐shell nanostructure photo‐piezocatalyst is constructed with single Au nanoparticle (Au NP) embedded in different positions within ferroelectric BaTiO 3 hollow nanosphere (BT‐HNS). This special structure showcases excellent mechanical force sensitivity and provides ample plasmon‐induced interfacial charge‐transfer pathways. In addition, the powerful piezoelectric polarization electric field induced by the enhanced ferroelectric polarization electric field via corona poling treatment in BT‐HNS further promotes charge separation, CO 2 adsorption and key intermediate conversion. Notably, BT with single Au NP encapsulated into hollow nanosphere shell with reinforced polarization (Au@BT‐1‐P) shows synergistically improved photo‐piezocatalytic CO 2 reduction activity for producing CO with a high production rate of 31.29 µmol g −1 h −1 under visible light irradiation and ultrasonic vibration. This work highlights a generic tactic for optimized design of high‐performance and multifunctional nanostructured photo‐piezocatalyst. Meanwhile, these yolk‐in‐shell nanostructures with single Au nanoparticle as an ideal model may hold great promise to inspire in‐depth exploration of carrier dynamics and mechanistic understanding of the catalytic reaction.
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